Measuring the built environment is complex because of the large number of dimensions that could be assessed and because different features of the environment vary in importance by behavior. In a study of walking for transportation and recreation, Hoehner et al. (2005)xClose
Hoehner, C., Ramirez, L., Elliot, M., Handy, S., Brownson, R. (2005). Perceived and objective environmental measures and physical activity among urban adults. American Journal of Preventive Medicine, 28(2S2), 105-116. found that neighborhood features associated with walking for transportation differed from those associated with walking for recreation.